@charset "utf-8";

/*Genneral setting*/
blockquote,body,button,dd,dl,dt,fieldset,form,h1,h2,h3,h4,h5,h6,hr,input,legend,li,ol,p,pre,td,textarea,th,ul{margin:0;padding:0}
body {
    font-family: Microsoft Yahei, "Helvetica Neue", Helvetica,  Hiragino Sans GB, WenQuanYi Micro Hei, sans-serif;
    background-color: #5d827b;
    /*height : 670px;*/
    overflow: hidden;
}

a{
    text-decoration: none !important;
    font-size: 12px;
    color: #fff;
}
ul,ol{
    list-style: none;
}

/*change the color of navbar-default*/
.navbar-keller {
    background-color: #050100;
    border-color: #050100;
}
.navbar-keller .navbar-brand {
    color: #fff;
}
.navbar-keller .navbar-brand:hover,
.navbar-keller .navbar-brand:focus {
    color: #fff;
    background-color: transparent;
}
.navbar-keller .navbar-text {
    color: #fff;
}
.navbar-keller .navbar-nav > li > a {
    color: #fff;
}
.navbar-keller .navbar-nav > li > a:hover,
.navbar-keller .navbar-nav > li > a:focus {
    color: #fff;
    background-color: transparent;
}
.navbar-keller .navbar-nav > .active > a,
.navbar-keller .navbar-nav > .active > a:hover,
.navbar-keller .navbar-nav > .active > a:focus {
    color: #555;
    background-color: transparent;
}
.navbar-keller .navbar-nav > .disabled > a,
.navbar-keller .navbar-nav > .disabled > a:hover,
.navbar-keller .navbar-nav > .disabled > a:focus {
    color: #ccc;
    background-color: transparent;
}
.navbar-keller .navbar-toggle {
    border-color: #ddd;
}
.navbar-keller .navbar-toggle:hover,
.navbar-keller .navbar-toggle:focus {
    background-color: #ddd;
}
.navbar-keller .navbar-toggle .icon-bar {
    background-color: #888;
}
.navbar-keller .navbar-collapse,
.navbar-keller .navbar-form {
    border-color: #e7e7e7;
}
.navbar-keller .navbar-nav > .open > a,
.navbar-keller .navbar-nav > .open > a:hover,
.navbar-keller .navbar-nav > .open > a:focus {
    color: #fff;
    background-color: #e7e7e7;
}
@media (max-width: 767px) {
    .navbar-keller .navbar-nav .open .dropdown-menu > li > a {
        color: #777;
    }
    .navbar-keller .navbar-nav .open .dropdown-menu > li > a:hover,
    .navbar-keller .navbar-nav .open .dropdown-menu > li > a:focus {
        color: #333;
        background-color: transparent;
    }
    .navbar-keller .navbar-nav .open .dropdown-menu > .active > a,
    .navbar-keller .navbar-nav .open .dropdown-menu > .active > a:hover,
    .navbar-keller .navbar-nav .open .dropdown-menu > .active > a:focus {
        color: #555;
        background-color: #e7e7e7;
    }
    .navbar-keller .navbar-nav .open .dropdown-menu > .disabled > a,
    .navbar-keller .navbar-nav .open .dropdown-menu > .disabled > a:hover,
    .navbar-keller .navbar-nav .open .dropdown-menu > .disabled > a:focus {
        color: #ccc;
        background-color: transparent;
    }
}
.navbar-keller .navbar-link {
    color: #777;
}
.navbar-keller .navbar-link:hover {
    color: #333;
}
.navbar-keller .btn-link {
    color: #777;
}
.navbar-keller .btn-link:hover,
.navbar-keller .btn-link:focus {
    color: #333;
}
.navbar-keller .btn-link[disabled]:hover,
fieldset[disabled] .navbar-keller .btn-link:hover,
.navbar-keller .btn-link[disabled]:focus,
fieldset[disabled] .navbar-keller .btn-link:focus {
    color: #ccc;
}

/*change the padding of container-fluid*/
.container-fluid {
    padding-right: 130px;
    padding-left: 130px;
    margin-right: auto;
    margin-left: auto;
}

/*change the radius of navbar*/
.navbar {
    border-radius: 0;
    margin-bottom: 0px;
}

/*change the padding of brand*/
.navbar-brand {
    float: left;
    /*height: 50px;*/
    padding: 0px 10px;
    font-size: 16px;
    line-height: 50px;
}

/*set the background-image of contain*/
#contain{
    height: 430px;
    background: url(../img/background.png) center center no-repeat;
    background-size: 90%;

}

/*footer*/
#footer{
    width: 100%;
    height: 200px;
    background-color: #fff;
    position: relative;
}
#footer > ul{
    width: 500px;
    height: 200px;
    position: absolute;
    top: 30px;
    left: 50%;
    margin-left: -250px;
}
#footer > ul > li{
    float: left;
}
#footer > ul > li > a{
    display: inline-block;
    margin-left: 30px;

}
#footer > ul > li.teacher > a{
    width: 203px;
    height: 47px;
    background: url(../img/loginBtn.png) 0 0 no-repeat;
}
#footer > ul > li.student > a{
    width: 203px;
    height: 47px;
    background: url(../img/loginBtn.png) -284px 0 no-repeat;
}
#footer > ul > li.student > a:hover{
    width: 203px;
    height: 47px;
    background: url(../img/loginBtn-active.png) 0 0 no-repeat;
}